BTR GEN III & IV LS TRUCK CAM - STAGE 2 - V3 - BTR-LSTRUCKSTG2-V3
Specs: 208/21X, .549"/.549", 108.5 LSA
INTAKE LOBE LIFT @ TDC: 0.0444”
The new BTR V3 Truck Camshafts are the result of BTR's most extensive truck cam development program ever, delivering more average torque and horsepower under the curve—perfect for trucks that need strong midrange performance & enhanced towing capability.
These cams use advanced valvetrain simulation and dynamic modeling tools, with Spintron development on both square and cathedral port heads to guarantee reliable, stable valvetrain performance across all possible platforms.
Next, BTR uses engine and chassis dyno testing, using full-length truck single and dual exhaust systems and OEM-style intakes. High-speed exhaust and intake port sensors and in-cylinder combustion pressure measurements on the dyno give feedback on pressure wave dynamics in real time. BTR performs hundreds of dyno runs to fine-tune cam timing, valve overlap, and exhaust scavenging, maximizing torque and efficiency across the RPM range.
These “Truck” cams receive the same engineering rigor and combustion development as BTR race programs. No old catalog lobes! BTR's goal was a clean-sheet design to bring true motorsport-level engineering discipline to the street and towing world, using the same high-end analytical tools, Spintron lobe development techniques, and wave-based combustion tuning methodologies trusted in professional racing. Plus, you're getting a 100% USA-designed & made product!
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BTR SKU: BTR-LSTRUCKSTG2-V3
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Recommended Engine Size: 4.8L, 5.3L, 6.0L, 6.2L
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Recommended Valve Springs: BTR-SK018, SP011-16
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NOTE: IF YOU HAVE A 6.0 OR 6.2 TRUCK ENGINE WITH SQUARE PORT HEADS, THE BTR-SK018 SPRING KIT IS RECOMMENDED.
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Recommended Lifters/Lifter Trays: (LS7 Lifters) X12499225, (Trays) BTR95365-4
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Suggested Pushrod Length: 7.400", measurement verification required
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RPM Operating Range: 1300-6250
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Idle Quality: Nice Mild Cam Sound, enough to tell it’s NOT Stock
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Chop Scale: 4/10
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Expected Cam Swap Gains (P2P): 53+ Horsepower, 16+ lb/ft, extra
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Torque Converter Characteristics: Works With OE Torque Converters
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'Drivability': Mild, Daily Driver Ready
| INTAKE DURATION @.050"
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208° |
| EXHAUST DURATION @.050" |
21X° |
| LOBE LIFT INTAKE |
0.323" |
| LOBE LIFT EXHAUST |
0.323" |
| INTAKE LOBE LIFT @ T.D.C. |
0.0444" |
| ROCKER ARM RATIO |
1.7:1 |
| NET LIFT INTAKE |
0.549" |
| NET LIFT EXHAUST |
0.549" |
| LOBE SEPARATION ANGLE |
108.5° |
| EXPECTED IDLE VAC 750RPM |
42 (kpa) |
